package/meson: never try to run generated target binaries

package/meson: never try to run generated target binaries

As explained in [0], meson will try on its own to decide whether it can
run what it builds. If it happens that the host and target CPUs are
"compatible", that test may fail and meson may believe it can run what
it builds.

Override that test by using needs_exe_wrapper=true, and not defining an
actual exe_wrapper.

[0] https://mesonbuild.com/Cross-compilation.html

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
[yann.morin.1998@free.fr:
  - split in its own patch
  - improve commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>